抑制幅频调制的时间功率曲线的远程精确测量  

Temporal Power Profiles Remote Precise Measurement of Suppressing Frequency Modulation to Amplitude Modulation Conversion

作　　者：黄家鹏 范薇[2] 石志东[1] 潘雪[2] 李娆[2] 卢兴华[2] 汪小超[2] 张生佳[2] HUANG Jia-peng;FAN Wei;SHI Zhi-dong;PAN Xue;LI Rao;LU Xing-hua;WANG Xiao-chao;ZHANG Sheng-jia(Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China;National Laboratory on High Power Lasers and Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Science,Shanghai 201800,China)

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海200444 [2]中国科学院上海光学精密机械研究所高功率激光物理联合实验室,上海201800

出　　处：《光子学报》2018年第9期34-42,共9页Acta Photonica Sinica

基　　金：国家自然科学基金(No.11604350)资助。

摘　　要：采用单偏振光纤远程传输待测光,结合上升沿与顶端波形分离处理的时域恢复算法,提出一种远程精确测量激光时间功率曲线的方法,并对高功率激光驱动器前端系统中1 053nm脉冲光的时间功率曲线进行了远程测量实验.结果表明,该方法有效避免了幅频调制对激光脉冲时间功率曲线测量的影响,获得了高保真的远程传输时间波形,引入的误差在每1ns范围内小于0.8%,可用于高功率激光系统的时间功率曲线远程集中测量.A method of remote precise measurement of laser temporal power profiles was proposed.This method used the single polarization optical fiber for laser remote transmission and combined with temporal power profile recovery algorithm where the rising edge and the top profiles of laser pulses were separated and processed respectively.The experiment of temporal power profiles remote measurement of 1 053 nm laser pulses in the front end of high power laser facility was carried out.The results show that the method effectively avoids the influence of frequency modulation to amplitude modulation on the temporal power profiles measurement,and undistorted temporal waveform after remote transmission is obtained.The calculated error introduced by this measurement method is less than 0.8%per nanosecond.The proposed method can be applied to temporal waveform remote centralized measurement in high power laser facility.

关 键 词：光纤光学 非线性光学 信号处理 单偏振光纤 时间功率曲线 色散 幅频调制 

分 类 号：TN29[电子电信—物理电子学]